A METHOD FOR CALCULATING, ON THE BASIS OF TABLES FOR A CRISIS IN BUNDLES, THE CRITICAL HEAT FLUX IN MIXED ROD ASSEMBLIES

摘要

A method for calculating the critical heat flux in mixed assemblies of fuel rods, for example, RBMK, containing triangular and tetragonal as well as peripheral macrocells, is presented. The method is based on a generalization of the experimental data in the form of tables for rod bundles. It is recommended for parameter ranges which are covered by the experimental data as well as for other ranges where there are no data. The advantages of the tabular method are as follows: it can be used in very wide parameter ranges, it gives a smooth description of the dependence of the critical heat fluxes on these parameters, it is convenient, highly reliable and accurate, and it is easy to use. 1 figure, 1 table, 7 references.